﻿/*
Copyright (c) Microsoft Corporation

All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0   

THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.  

See the Apache Version 2.0 License for specific language governing permissions and limitations under the License. 
*/

// canvas rotation logic
var lastangle = 0;
'use strict';

function perform_transform(angle) {
    var container_elm = document.getElementById('container');

    if (!container_elm) {
        return false;
    }

    if (lastangle != angle) {
        var transform_string = "rotate($deg)".replace(/\$/gi, angle);

        container_elm.style.setAttribute('transform', transform_string);
        lastangle = angle;
    }

};